Baekhyun's rude gesture when calling the members?

=1. [+79, -27] He still hasn't fixed his iljin habit2. [+68, -11] When I was a fan of him, I thought it was sexy ㅋㅋ But it still doesn't look pleasant. It's like he's calling his dog...3. [+50, -12] Is he calling a dog ㅋㅋ4. [+23, -0] Honestly, I'd be annoyed if my friend does that gesture to me5. [+20, -5] Iljin gesture ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ6. [+19, -3] Does he think the members are dogs? I don't even call my dog like that7. [+18, -1] When he was a rookie and before his past was revealed, I thought the gesture was sexy. Looking at it now, it looks so arrogant. Are the members his dogs or what? He can just call their names. Why does he have to do that finger gesture?